Finding the Fourth Proportional to 651,709.74, 899,387.90 and 361,302.81
Calculator
Solution
The fourth proportional to 651,709.74, 899,387.90 and 361,302.81 is: 498,613.66
Step by Step Solution
- Step 1: Write the proportion equation
651,709.74 : 899,387.90 = 361,302.81 : x - Step 2: Convert to fraction form
651,709.74/899,387.90 = 361,302.81/x - Step 3: Cross multiply
651,709.74x = 899,387.90 × 361,302.81 - Step 4: Simplify right side
651,709.74x = 324,951,375,550.00 - Step 5: Solve for x
x = 324,951,375,550.00/651,709.74 - Step 6: Final answer
x = 498,613.66
Related Problems
Find fourth proportional to 325,854.87, 449,693.95 and 180,651.41
Half scale
Find fourth proportional to 1,303,419.48, 1,798,775.80 and 722,605.62
Double scale
Find fourth proportional to 651,710.74, 899,389.28 and 361,303.81
Similar ratio
Find fourth proportional to 977,564.61, 1,349,081.85 and 541,954.22
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.